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Finding the Fourth Proportional to 12,039.69, 18,033.08 and 9,935.85

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Solution

The fourth proportional to 12,039.69, 18,033.08 and 9,935.85 is: 14,881.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.69 : 18,033.08 = 9,935.85 : x
  2. Step 2: Convert to fraction form
    12,039.69/18,033.08 = 9,935.85/x
  3. Step 3: Cross multiply
    12,039.69x = 18,033.08 × 9,935.85
  4. Step 4: Simplify right side
    12,039.69x = 179,173,928.24
  5. Step 5: Solve for x
    x = 179,173,928.24/12,039.69
  6. Step 6: Final answer
    x = 14,881.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.